1 /* 2 * Copyright (C) 2017 Netronome Systems, Inc. 3 * 4 * This software is dual licensed under the GNU General License Version 2, 5 * June 1991 as shown in the file COPYING in the top-level directory of this 6 * source tree or the BSD 2-Clause License provided below. You have the 7 * option to license this software under the complete terms of either license. 8 * 9 * The BSD 2-Clause License: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * 1. Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * 2. Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 #include <linux/bitfield.h> 35 #include <net/pkt_cls.h> 36 #include <net/switchdev.h> 37 #include <net/tc_act/tc_gact.h> 38 #include <net/tc_act/tc_mirred.h> 39 #include <net/tc_act/tc_pedit.h> 40 #include <net/tc_act/tc_vlan.h> 41 #include <net/tc_act/tc_tunnel_key.h> 42 43 #include "cmsg.h" 44 #include "main.h" 45 #include "../nfp_net_repr.h" 46 47 static void nfp_fl_pop_vlan(struct nfp_fl_pop_vlan *pop_vlan) 48 { 49 size_t act_size = sizeof(struct nfp_fl_pop_vlan); 50 51 pop_vlan->head.jump_id = NFP_FL_ACTION_OPCODE_POP_VLAN; 52 pop_vlan->head.len_lw = act_size >> NFP_FL_LW_SIZ; 53 pop_vlan->reserved = 0; 54 } 55 56 static void 57 nfp_fl_push_vlan(struct nfp_fl_push_vlan *push_vlan, 58 const struct tc_action *action) 59 { 60 size_t act_size = sizeof(struct nfp_fl_push_vlan); 61 u16 tmp_push_vlan_tci; 62 63 push_vlan->head.jump_id = NFP_FL_ACTION_OPCODE_PUSH_VLAN; 64 push_vlan->head.len_lw = act_size >> NFP_FL_LW_SIZ; 65 push_vlan->reserved = 0; 66 push_vlan->vlan_tpid = tcf_vlan_push_proto(action); 67 68 tmp_push_vlan_tci = 69 FIELD_PREP(NFP_FL_PUSH_VLAN_PRIO, tcf_vlan_push_prio(action)) | 70 FIELD_PREP(NFP_FL_PUSH_VLAN_VID, tcf_vlan_push_vid(action)) | 71 NFP_FL_PUSH_VLAN_CFI; 72 push_vlan->vlan_tci = cpu_to_be16(tmp_push_vlan_tci); 73 } 74 75 static bool nfp_fl_netdev_is_tunnel_type(struct net_device *out_dev, 76 enum nfp_flower_tun_type tun_type) 77 { 78 if (!out_dev->rtnl_link_ops) 79 return false; 80 81 if (!strcmp(out_dev->rtnl_link_ops->kind, "vxlan")) 82 return tun_type == NFP_FL_TUNNEL_VXLAN; 83 84 if (!strcmp(out_dev->rtnl_link_ops->kind, "geneve")) 85 return tun_type == NFP_FL_TUNNEL_GENEVE; 86 87 return false; 88 } 89 90 static int 91 nfp_fl_output(struct nfp_fl_output *output, const struct tc_action *action, 92 struct nfp_fl_payload *nfp_flow, bool last, 93 struct net_device *in_dev, enum nfp_flower_tun_type tun_type, 94 int *tun_out_cnt) 95 { 96 size_t act_size = sizeof(struct nfp_fl_output); 97 struct net_device *out_dev; 98 u16 tmp_flags; 99 100 output->head.jump_id = NFP_FL_ACTION_OPCODE_OUTPUT; 101 output->head.len_lw = act_size >> NFP_FL_LW_SIZ; 102 103 out_dev = tcf_mirred_dev(action); 104 if (!out_dev) 105 return -EOPNOTSUPP; 106 107 tmp_flags = last ? NFP_FL_OUT_FLAGS_LAST : 0; 108 109 if (tun_type) { 110 /* Verify the egress netdev matches the tunnel type. */ 111 if (!nfp_fl_netdev_is_tunnel_type(out_dev, tun_type)) 112 return -EOPNOTSUPP; 113 114 if (*tun_out_cnt) 115 return -EOPNOTSUPP; 116 (*tun_out_cnt)++; 117 118 output->flags = cpu_to_be16(tmp_flags | 119 NFP_FL_OUT_FLAGS_USE_TUN); 120 output->port = cpu_to_be32(NFP_FL_PORT_TYPE_TUN | tun_type); 121 } else { 122 /* Set action output parameters. */ 123 output->flags = cpu_to_be16(tmp_flags); 124 125 /* Only offload if egress ports are on the same device as the 126 * ingress port. 127 */ 128 if (!switchdev_port_same_parent_id(in_dev, out_dev)) 129 return -EOPNOTSUPP; 130 if (!nfp_netdev_is_nfp_repr(out_dev)) 131 return -EOPNOTSUPP; 132 133 output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev)); 134 if (!output->port) 135 return -EOPNOTSUPP; 136 } 137 nfp_flow->meta.shortcut = output->port; 138 139 return 0; 140 } 141 142 static enum nfp_flower_tun_type 143 nfp_fl_get_tun_from_act_l4_port(struct nfp_app *app, 144 const struct tc_action *action) 145 { 146 struct ip_tunnel_info *tun = tcf_tunnel_info(action); 147 struct nfp_flower_priv *priv = app->priv; 148 149 switch (tun->key.tp_dst) { 150 case htons(NFP_FL_VXLAN_PORT): 151 return NFP_FL_TUNNEL_VXLAN; 152 case htons(NFP_FL_GENEVE_PORT): 153 if (priv->flower_ext_feats & NFP_FL_FEATS_GENEVE) 154 return NFP_FL_TUNNEL_GENEVE; 155 /* FALLTHROUGH */ 156 default: 157 return NFP_FL_TUNNEL_NONE; 158 } 159 } 160 161 static struct nfp_fl_pre_tunnel *nfp_fl_pre_tunnel(char *act_data, int act_len) 162 { 163 size_t act_size = sizeof(struct nfp_fl_pre_tunnel); 164 struct nfp_fl_pre_tunnel *pre_tun_act; 165 166 /* Pre_tunnel action must be first on action list. 167 * If other actions already exist they need pushed forward. 168 */ 169 if (act_len) 170 memmove(act_data + act_size, act_data, act_len); 171 172 pre_tun_act = (struct nfp_fl_pre_tunnel *)act_data; 173 174 memset(pre_tun_act, 0, act_size); 175 176 pre_tun_act->head.jump_id = NFP_FL_ACTION_OPCODE_PRE_TUNNEL; 177 pre_tun_act->head.len_lw = act_size >> NFP_FL_LW_SIZ; 178 179 return pre_tun_act; 180 } 181 182 static int 183 nfp_fl_set_ipv4_udp_tun(struct nfp_fl_set_ipv4_udp_tun *set_tun, 184 const struct tc_action *action, 185 struct nfp_fl_pre_tunnel *pre_tun, 186 enum nfp_flower_tun_type tun_type, 187 struct net_device *netdev) 188 { 189 size_t act_size = sizeof(struct nfp_fl_set_ipv4_udp_tun); 190 struct ip_tunnel_info *ip_tun = tcf_tunnel_info(action); 191 u32 tmp_set_ip_tun_type_index = 0; 192 /* Currently support one pre-tunnel so index is always 0. */ 193 int pretun_idx = 0; 194 struct net *net; 195 196 if (ip_tun->options_len) 197 return -EOPNOTSUPP; 198 199 net = dev_net(netdev); 200 201 set_tun->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL; 202 set_tun->head.len_lw = act_size >> NFP_FL_LW_SIZ; 203 204 /* Set tunnel type and pre-tunnel index. */ 205 tmp_set_ip_tun_type_index |= 206 FIELD_PREP(NFP_FL_IPV4_TUNNEL_TYPE, tun_type) | 207 FIELD_PREP(NFP_FL_IPV4_PRE_TUN_INDEX, pretun_idx); 208 209 set_tun->tun_type_index = cpu_to_be32(tmp_set_ip_tun_type_index); 210 set_tun->tun_id = ip_tun->key.tun_id; 211 set_tun->ttl = net->ipv4.sysctl_ip_default_ttl; 212 213 /* Complete pre_tunnel action. */ 214 pre_tun->ipv4_dst = ip_tun->key.u.ipv4.dst; 215 216 return 0; 217 } 218 219 static void nfp_fl_set_helper32(u32 value, u32 mask, u8 *p_exact, u8 *p_mask) 220 { 221 u32 oldvalue = get_unaligned((u32 *)p_exact); 222 u32 oldmask = get_unaligned((u32 *)p_mask); 223 224 value &= mask; 225 value |= oldvalue & ~mask; 226 227 put_unaligned(oldmask | mask, (u32 *)p_mask); 228 put_unaligned(value, (u32 *)p_exact); 229 } 230 231 static int 232 nfp_fl_set_eth(const struct tc_action *action, int idx, u32 off, 233 struct nfp_fl_set_eth *set_eth) 234 { 235 u32 exact, mask; 236 237 if (off + 4 > ETH_ALEN * 2) 238 return -EOPNOTSUPP; 239 240 mask = ~tcf_pedit_mask(action, idx); 241 exact = tcf_pedit_val(action, idx); 242 243 if (exact & ~mask) 244 return -EOPNOTSUPP; 245 246 nfp_fl_set_helper32(exact, mask, &set_eth->eth_addr_val[off], 247 &set_eth->eth_addr_mask[off]); 248 249 set_eth->reserved = cpu_to_be16(0); 250 set_eth->head.jump_id = NFP_FL_ACTION_OPCODE_SET_ETHERNET; 251 set_eth->head.len_lw = sizeof(*set_eth) >> NFP_FL_LW_SIZ; 252 253 return 0; 254 } 255 256 static int 257 nfp_fl_set_ip4(const struct tc_action *action, int idx, u32 off, 258 struct nfp_fl_set_ip4_addrs *set_ip_addr) 259 { 260 __be32 exact, mask; 261 262 /* We are expecting tcf_pedit to return a big endian value */ 263 mask = (__force __be32)~tcf_pedit_mask(action, idx); 264 exact = (__force __be32)tcf_pedit_val(action, idx); 265 266 if (exact & ~mask) 267 return -EOPNOTSUPP; 268 269 switch (off) { 270 case offsetof(struct iphdr, daddr): 271 set_ip_addr->ipv4_dst_mask = mask; 272 set_ip_addr->ipv4_dst = exact; 273 break; 274 case offsetof(struct iphdr, saddr): 275 set_ip_addr->ipv4_src_mask = mask; 276 set_ip_addr->ipv4_src = exact; 277 break; 278 default: 279 return -EOPNOTSUPP; 280 } 281 282 set_ip_addr->reserved = cpu_to_be16(0); 283 set_ip_addr->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS; 284 set_ip_addr->head.len_lw = sizeof(*set_ip_addr) >> NFP_FL_LW_SIZ; 285 286 return 0; 287 } 288 289 static void 290 nfp_fl_set_ip6_helper(int opcode_tag, int idx, __be32 exact, __be32 mask, 291 struct nfp_fl_set_ipv6_addr *ip6) 292 { 293 ip6->ipv6[idx % 4].mask = mask; 294 ip6->ipv6[idx % 4].exact = exact; 295 296 ip6->reserved = cpu_to_be16(0); 297 ip6->head.jump_id = opcode_tag; 298 ip6->head.len_lw = sizeof(*ip6) >> NFP_FL_LW_SIZ; 299 } 300 301 static int 302 nfp_fl_set_ip6(const struct tc_action *action, int idx, u32 off, 303 struct nfp_fl_set_ipv6_addr *ip_dst, 304 struct nfp_fl_set_ipv6_addr *ip_src) 305 { 306 __be32 exact, mask; 307 308 /* We are expecting tcf_pedit to return a big endian value */ 309 mask = (__force __be32)~tcf_pedit_mask(action, idx); 310 exact = (__force __be32)tcf_pedit_val(action, idx); 311 312 if (exact & ~mask) 313 return -EOPNOTSUPP; 314 315 if (off < offsetof(struct ipv6hdr, saddr)) 316 return -EOPNOTSUPP; 317 else if (off < offsetof(struct ipv6hdr, daddr)) 318 nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_SRC, idx, 319 exact, mask, ip_src); 320 else if (off < offsetof(struct ipv6hdr, daddr) + 321 sizeof(struct in6_addr)) 322 nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_DST, idx, 323 exact, mask, ip_dst); 324 else 325 return -EOPNOTSUPP; 326 327 return 0; 328 } 329 330 static int 331 nfp_fl_set_tport(const struct tc_action *action, int idx, u32 off, 332 struct nfp_fl_set_tport *set_tport, int opcode) 333 { 334 u32 exact, mask; 335 336 if (off) 337 return -EOPNOTSUPP; 338 339 mask = ~tcf_pedit_mask(action, idx); 340 exact = tcf_pedit_val(action, idx); 341 342 if (exact & ~mask) 343 return -EOPNOTSUPP; 344 345 nfp_fl_set_helper32(exact, mask, set_tport->tp_port_val, 346 set_tport->tp_port_mask); 347 348 set_tport->reserved = cpu_to_be16(0); 349 set_tport->head.jump_id = opcode; 350 set_tport->head.len_lw = sizeof(*set_tport) >> NFP_FL_LW_SIZ; 351 352 return 0; 353 } 354 355 static int 356 nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len) 357 { 358 struct nfp_fl_set_ipv6_addr set_ip6_dst, set_ip6_src; 359 struct nfp_fl_set_ip4_addrs set_ip_addr; 360 struct nfp_fl_set_tport set_tport; 361 struct nfp_fl_set_eth set_eth; 362 enum pedit_header_type htype; 363 int idx, nkeys, err; 364 size_t act_size; 365 u32 offset, cmd; 366 367 memset(&set_ip6_dst, 0, sizeof(set_ip6_dst)); 368 memset(&set_ip6_src, 0, sizeof(set_ip6_src)); 369 memset(&set_ip_addr, 0, sizeof(set_ip_addr)); 370 memset(&set_tport, 0, sizeof(set_tport)); 371 memset(&set_eth, 0, sizeof(set_eth)); 372 nkeys = tcf_pedit_nkeys(action); 373 374 for (idx = 0; idx < nkeys; idx++) { 375 cmd = tcf_pedit_cmd(action, idx); 376 htype = tcf_pedit_htype(action, idx); 377 offset = tcf_pedit_offset(action, idx); 378 379 if (cmd != TCA_PEDIT_KEY_EX_CMD_SET) 380 return -EOPNOTSUPP; 381 382 switch (htype) { 383 case TCA_PEDIT_KEY_EX_HDR_TYPE_ETH: 384 err = nfp_fl_set_eth(action, idx, offset, &set_eth); 385 break; 386 case TCA_PEDIT_KEY_EX_HDR_TYPE_IP4: 387 err = nfp_fl_set_ip4(action, idx, offset, &set_ip_addr); 388 break; 389 case TCA_PEDIT_KEY_EX_HDR_TYPE_IP6: 390 err = nfp_fl_set_ip6(action, idx, offset, &set_ip6_dst, 391 &set_ip6_src); 392 break; 393 case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP: 394 err = nfp_fl_set_tport(action, idx, offset, &set_tport, 395 NFP_FL_ACTION_OPCODE_SET_TCP); 396 break; 397 case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP: 398 err = nfp_fl_set_tport(action, idx, offset, &set_tport, 399 NFP_FL_ACTION_OPCODE_SET_UDP); 400 break; 401 default: 402 return -EOPNOTSUPP; 403 } 404 if (err) 405 return err; 406 } 407 408 if (set_eth.head.len_lw) { 409 act_size = sizeof(set_eth); 410 memcpy(nfp_action, &set_eth, act_size); 411 *a_len += act_size; 412 } else if (set_ip_addr.head.len_lw) { 413 act_size = sizeof(set_ip_addr); 414 memcpy(nfp_action, &set_ip_addr, act_size); 415 *a_len += act_size; 416 } else if (set_ip6_dst.head.len_lw && set_ip6_src.head.len_lw) { 417 /* TC compiles set src and dst IPv6 address as a single action, 418 * the hardware requires this to be 2 separate actions. 419 */ 420 act_size = sizeof(set_ip6_src); 421 memcpy(nfp_action, &set_ip6_src, act_size); 422 *a_len += act_size; 423 424 act_size = sizeof(set_ip6_dst); 425 memcpy(&nfp_action[sizeof(set_ip6_src)], &set_ip6_dst, 426 act_size); 427 *a_len += act_size; 428 } else if (set_ip6_dst.head.len_lw) { 429 act_size = sizeof(set_ip6_dst); 430 memcpy(nfp_action, &set_ip6_dst, act_size); 431 *a_len += act_size; 432 } else if (set_ip6_src.head.len_lw) { 433 act_size = sizeof(set_ip6_src); 434 memcpy(nfp_action, &set_ip6_src, act_size); 435 *a_len += act_size; 436 } else if (set_tport.head.len_lw) { 437 act_size = sizeof(set_tport); 438 memcpy(nfp_action, &set_tport, act_size); 439 *a_len += act_size; 440 } 441 442 return 0; 443 } 444 445 static int 446 nfp_flower_loop_action(const struct tc_action *a, 447 struct nfp_fl_payload *nfp_fl, int *a_len, 448 struct net_device *netdev, 449 enum nfp_flower_tun_type *tun_type, int *tun_out_cnt) 450 { 451 struct nfp_fl_set_ipv4_udp_tun *set_tun; 452 struct nfp_fl_pre_tunnel *pre_tun; 453 struct nfp_fl_push_vlan *psh_v; 454 struct nfp_fl_pop_vlan *pop_v; 455 struct nfp_fl_output *output; 456 int err; 457 458 if (is_tcf_gact_shot(a)) { 459 nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_DROP); 460 } else if (is_tcf_mirred_egress_redirect(a)) { 461 if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ) 462 return -EOPNOTSUPP; 463 464 output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len]; 465 err = nfp_fl_output(output, a, nfp_fl, true, netdev, *tun_type, 466 tun_out_cnt); 467 if (err) 468 return err; 469 470 *a_len += sizeof(struct nfp_fl_output); 471 } else if (is_tcf_mirred_egress_mirror(a)) { 472 if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ) 473 return -EOPNOTSUPP; 474 475 output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len]; 476 err = nfp_fl_output(output, a, nfp_fl, false, netdev, *tun_type, 477 tun_out_cnt); 478 if (err) 479 return err; 480 481 *a_len += sizeof(struct nfp_fl_output); 482 } else if (is_tcf_vlan(a) && tcf_vlan_action(a) == TCA_VLAN_ACT_POP) { 483 if (*a_len + sizeof(struct nfp_fl_pop_vlan) > NFP_FL_MAX_A_SIZ) 484 return -EOPNOTSUPP; 485 486 pop_v = (struct nfp_fl_pop_vlan *)&nfp_fl->action_data[*a_len]; 487 nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_POPV); 488 489 nfp_fl_pop_vlan(pop_v); 490 *a_len += sizeof(struct nfp_fl_pop_vlan); 491 } else if (is_tcf_vlan(a) && tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) { 492 if (*a_len + sizeof(struct nfp_fl_push_vlan) > NFP_FL_MAX_A_SIZ) 493 return -EOPNOTSUPP; 494 495 psh_v = (struct nfp_fl_push_vlan *)&nfp_fl->action_data[*a_len]; 496 nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); 497 498 nfp_fl_push_vlan(psh_v, a); 499 *a_len += sizeof(struct nfp_fl_push_vlan); 500 } else if (is_tcf_tunnel_set(a)) { 501 struct nfp_repr *repr = netdev_priv(netdev); 502 *tun_type = nfp_fl_get_tun_from_act_l4_port(repr->app, a); 503 if (*tun_type == NFP_FL_TUNNEL_NONE) 504 return -EOPNOTSUPP; 505 506 /* Pre-tunnel action is required for tunnel encap. 507 * This checks for next hop entries on NFP. 508 * If none, the packet falls back before applying other actions. 509 */ 510 if (*a_len + sizeof(struct nfp_fl_pre_tunnel) + 511 sizeof(struct nfp_fl_set_ipv4_udp_tun) > NFP_FL_MAX_A_SIZ) 512 return -EOPNOTSUPP; 513 514 pre_tun = nfp_fl_pre_tunnel(nfp_fl->action_data, *a_len); 515 nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); 516 *a_len += sizeof(struct nfp_fl_pre_tunnel); 517 518 set_tun = (void *)&nfp_fl->action_data[*a_len]; 519 err = nfp_fl_set_ipv4_udp_tun(set_tun, a, pre_tun, *tun_type, 520 netdev); 521 if (err) 522 return err; 523 *a_len += sizeof(struct nfp_fl_set_ipv4_udp_tun); 524 } else if (is_tcf_tunnel_release(a)) { 525 /* Tunnel decap is handled by default so accept action. */ 526 return 0; 527 } else if (is_tcf_pedit(a)) { 528 if (nfp_fl_pedit(a, &nfp_fl->action_data[*a_len], a_len)) 529 return -EOPNOTSUPP; 530 } else { 531 /* Currently we do not handle any other actions. */ 532 return -EOPNOTSUPP; 533 } 534 535 return 0; 536 } 537 538 int nfp_flower_compile_action(struct tc_cls_flower_offload *flow, 539 struct net_device *netdev, 540 struct nfp_fl_payload *nfp_flow) 541 { 542 int act_len, act_cnt, err, tun_out_cnt; 543 enum nfp_flower_tun_type tun_type; 544 const struct tc_action *a; 545 LIST_HEAD(actions); 546 547 memset(nfp_flow->action_data, 0, NFP_FL_MAX_A_SIZ); 548 nfp_flow->meta.act_len = 0; 549 tun_type = NFP_FL_TUNNEL_NONE; 550 act_len = 0; 551 act_cnt = 0; 552 tun_out_cnt = 0; 553 554 tcf_exts_to_list(flow->exts, &actions); 555 list_for_each_entry(a, &actions, list) { 556 err = nfp_flower_loop_action(a, nfp_flow, &act_len, netdev, 557 &tun_type, &tun_out_cnt); 558 if (err) 559 return err; 560 act_cnt++; 561 } 562 563 /* We optimise when the action list is small, this can unfortunately 564 * not happen once we have more than one action in the action list. 565 */ 566 if (act_cnt > 1) 567 nfp_flow->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL); 568 569 nfp_flow->meta.act_len = act_len; 570 571 return 0; 572 } 573